液体の熱伝導率の光学的非定常測定法の研究

液体导热系数的光学非稳态测量研究

• 批准号: 59460092
• 负责人: NAGASHIMA Akira
• 金额: $ 4.61万
• 依托单位: Faculty of Science and Technology, Keio University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1984
• 资助国家: 日本
• 起止时间: 1984 至 1986
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-59460092/
• 关键词: Thermal diffusivity; Thermal conductivity; Forced Rayleigh scattering method Liquid crystal; 非接触測定法; 液晶; 溶融塩

The results obtained from the present project are summerized as follows.[1984]1. An apparatus to measure the thermal diffusivity of liquids by the forced Rayleigh scattering method was constructed and the principle of the method was confirmed.2. The error factors(sample thickness, wall thickness, dye concentration) were experimentally investigated through the measurements on toluene.[1985]1. In order to improve the accuracy of the measurement, the follwing modifications were made.(1) on-line data acquisition, (2) measurement of the fringe spacing by CCD device,(3) extension of the heating duration time.2. Measurements of several liquids at room temperature were performed. (1) organic liquids (toluene, hexane, heptane and methanol), (2) water, (3) liquid crystal.[1986]1. The error factors were theoretically analysed and compared with the experimental results. The error factors considered were ; (1) sample thickness, (2) dye concentration, (3) Gaussian intensity distribution of the heating beam, (4) heating duration time.2. The apparatus was improved to measure the high temperature molten salts.3. Measurements were performed on molten <NaNO_3> and KCl in the temperature range up to about 1000゜C.

现将本课题的研究成果总结如下： [1984] 1．建立了强迫瑞利散射法测量液体热扩散率的装置，并确定了该方法的原理。 2．通过对甲苯的测量，对厚度、壁厚、染料浓度进行了实验研究。[1985]1．为了提高测量的准确性，进行了以下修改。（1）在线数据采集， (2)通过CCD装置测量条纹间距，(3)延长加热持续时间。2.在室温下对几种液体进行测量(1)有机液体(甲苯、己烷、庚烷和甲醇)，( 2）水，（3）液晶。[1986]1．对误差因素进行了理论分析，并与实验结果进行了比较；考虑了（1）样品厚度，（2）染料浓度， (3)加热束的高斯强度分布，(4)加热持续时间。2．改进了测量高温熔盐的装置。3．对熔融<NaNO_3>和KCl的温度范围进行了测量。约1000゜C。

项目成果

長坂雄次: 第7回日本熱物性シンポジウム講演論文集. 7. 17-20 (1986)

Yuji Nagasaka：第七届日本热物理性质研讨会论文集。7. 17-20 (1986)。

畠山拓也: 第24回日本伝熱シンポジウム講演論文集. 24. (1987)

Takuy​​a Hatakeyama：第 24 届日本传热研讨会论文集 24。（1987）。

畠山拓也: 第6回日本熱物性シンポジウム講演論文集. 6. 57-60 (1985)

Takuy​​a Hatakeyama：第六届日本热物理性质研讨会论文集。6. 57-60 (1985)。

Hatakeyama, T.: "Measurement of the thermal diffusivity of liquids by the forced Rayleigh scattering method (1st report ; Examination of the method and measurements on some liquids including toluene)" Trans, JSME (B). (1987)

Hatakeyama, T.：“通过强制瑞利散射法测量液体的热扩散率（第 1 份报告；检查方法和对包括甲苯在内的某些液体的测量）”Trans，JSME (B)。

長坂雄次: 日本機械学会論文集 B編. (1987)

Yuji Nagasaka：日本机械工程师学会会议记录，B 卷（1987 年）